<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>菜单</title>
		<style>
			ul{
				list-style:none;
			}
			li{
				float: left;
				margin-right: 20px;/*外部空白*/
				background-color: #ffee00;
				padding: 5px 10px 5px 10px;/*内部空白*/
				border-radius: 10px;
			}
			li:hover{
				background-color: #c7a933;
			}
			a{
				text-decoration: none;
				color: black;
			}
		</style>
	</head>
	<body>
		<!--ul标签分组,li条目-->
		<ul>
			<li><a href="http://www.w3school.com.cn/" target="_blank">W3school</a></li>
			<li><a href="http://www.runoob.com/" target="_blank"> 菜鸟教程</a></li>
			<li><a href="http://www.cnblogs.com/" target="_blank">博客园</a></li>
			<li><a href="http://www.csdn.net/" target="_blank">CSDN</a></li>
			<li><a herf="http://www.segmentfault.com/" target="_blank">思否</a></li>
		</ul>
	</body>
</html>
